Premixing device of dustless modifier production line

Abstract

The utility model provides a premixing device of a dustless modifier production line, which comprises a material mixing barrel, a feeding port, a discharging port, a feeding port and a discharging port, the driving and stirring mechanism comprises a motor as well as a stirring shaft and a stirring blade which penetrate into the mixing barrel; the blowing pipe is positioned below the mixing barrel and penetrates into the bottom surface of the mixing barrel; the exhaust mechanism is positioned on the top surface of the mixing barrel. According to the utility model, the blowing mechanism is additionally arranged, so that powder accumulated at the bottom in the mixing barrel is effectively raised, and the mixing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of mixing devices, and in particular to premixing devices for dust-free modifier production lines. Background Technology

[0002] Modifiers, as highly efficient alternative materials, are widely used in various fields such as soft leather, sports flooring, hard flooring, and PVC pipes. Their core function is to reduce the amount of PVC used, thereby achieving cost savings while ensuring that product quality and performance are not affected.

[0003] In the preparation of modifiers, the unpacking, feeding, and mixing of raw materials are crucial steps. These raw materials are mostly in powder form and need to be fed into a specific mixing device to be thoroughly mixed with other components in a predetermined ratio to generate the final product. This process requires a high degree of precision and uniformity to ensure that the modifier's performance meets expectations.

[0004] Currently, the production of modifiers mainly relies on various pieces of equipment dispersed throughout the workshop, including feeding, mixing, weighing, and packaging. These devices work together to transform raw materials into finished products. However, due to the characteristics of powdered raw materials, the mixing process faces certain challenges. In particular, premixing devices typically use stirring blades in a mixing tank, but due to the limited width of the stirring blades, the powder at the bottom of the mixing device is often difficult to mix thoroughly, resulting in less than ideal mixing effects.

[0005] In view of this, the inventors specifically designed a premixing device for a dust-free modifier production line, which led to this invention. Utility Model Content

[0006] To solve the above problems, the technical solution of this utility model is as follows:

[0007] The premixing unit of the dust-free modifier production line includes:

[0008] A mixing drum with an inlet and an outlet;

[0009] The driving and stirring mechanism includes a motor, a stirring shaft and stirring blades inserted into the mixing tank;

[0010] Its characteristic is that it further includes:

[0011] The air blowing pipe is located below the mixing tank and extends into the bottom of the mixing tank;

[0012] The exhaust mechanism is located on the top surface of the mixing tank.

[0013] Preferably, the top of the air blowing pipe is closed, and the air blowing pipe has several side air blowing holes on the peripheral wall inside the mixing barrel.

[0014] Preferably, the side air vents are arranged at an angle downwards.

[0015] Preferably, the air blowing pipe is located near the inner peripheral wall of the mixing tank.

[0016] Preferably, the exhaust mechanism is arranged in a tubular shape.

[0017] Preferably, the inner wall of the exhaust mechanism is provided with a plurality of staggered baffles.

[0018] Preferably, the baffle is inclined downwards.

[0019] Preferably, the top of the exhaust mechanism is provided with an inverted U-shaped cover, the bottom of which is fixed with a powder suction groove, and the bottom end of the inverted cover extends into the powder suction groove.

[0020] The beneficial effects of this utility model are as follows:

[0021] This invention overcomes the problem of existing mixing drums failing to mix accumulated powder at the bottom by installing an air blowing pipe at the bottom and an exhaust mechanism at the top. The air blowing pipe disperses the powder accumulated at the bottom of the mixing drum, causing the powder accumulated at the top to rise and be mixed by the stirring blades. The exhaust mechanism balances the air pressure inside and outside the mixing drum; its placement at the top reduces blockages caused by dust accumulation at the bottom and minimizes excessive dust escape. Furthermore, the redesigned exhaust mechanism achieves dust-free evacuation, meeting the requirements of cleanrooms. Attached Figure Description

[0022] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0023] in:

[0024] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0025] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0026] Figure 3 yes Figure 1 Enlarged diagram of part B.

[0027] Label Explanation:

[0028] 10. Mixing tank; 11. Feed inlet; 12. Discharge outlet; 20. Drive stirring mechanism; 21. Motor; 22. Stirring shaft; 23. Stirring blade; 30. Air blowing pipe; 31. Side air blowing hole; 40. Exhaust mechanism; 41. Baffle plate; 50. Inverted cover; 60. Powder suction tank. Detailed Implementation

[0029] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0030] Please see Figures 1 to 3 This is a premixing device for a dust-free modifier production line, which is the preferred embodiment of this utility model. It includes: a mixing tank 10, a driving stirring mechanism 20, an air blowing pipe 30, and an exhaust mechanism 40.

[0031] The mixing tank 10 is enclosed and has an inlet 11 and an outlet 12. The inlet 11 and outlet 12 are loaded and unloaded by a PLC control program. It is necessary to ensure that the outside of the mixing tank 10 meets the dust-free standard throughout the process.

[0032] Furthermore, the powder raw materials in the mixing tank 10 can be stirred by driving the stirring mechanism 20. The stirring mechanism 20 includes a motor 21 and a stirring shaft 22 and stirring blades 23 that penetrate into the mixing tank 10. Since there is a gap between the stirring blades 23 and the inner peripheral wall and bottom wall of the mixing tank 10, it is impossible to mix the powder accumulated on the bottom wall of the mixing tank 10. Therefore, in some preferred embodiments, an air blowing pipe 30 is provided. The air blowing pipe 30 is located below the mixing tank 10 and penetrates the bottom surface of the mixing tank 10. Its exterior is connected to an air pump, and its interior is set close to the inner peripheral wall of the mixing tank 10 to avoid interference with the stirring blades 23. The air blowing pipe 30 penetrating into the mixing tank 10 can focus on blowing air into the bottom of the mixing tank 10, thereby causing the powder at the bottom of the mixing tank 10 to be stirred up and mixed. It is worth mentioning that the air pump preferably produces inert gases such as nitrogen, thereby reducing the generation of oxidants and reducing the risk of explosion.

[0033] In this embodiment, the top of the air blowing pipe 30 is closed, and the air blowing pipe 30 is provided with a plurality of side air blowing holes 31 on the peripheral wall inside the mixing barrel 10. The side air blowing holes 31 are preferably arranged inclined downwards, which can blow air to the bottom of the mixing barrel 10 to lift up the accumulated powder, and can also prevent the lifted powder from directly entering the side air blowing holes 31 when it falls.

[0034] In order to ensure the pressure balance inside and outside the mixing tank 10, an exhaust mechanism 40 is provided in this embodiment. The exhaust mechanism 40 is preferably located on the top surface of the mixing tank 10, which can avoid leakage problems caused by powder accumulation.

[0035] The exhaust mechanism 40 is preferably tubular to increase the exhaust height and reduce the amount of dust escaping. In addition, the inner wall of the exhaust mechanism 40 is provided with a plurality of staggered baffles 41, which are preferably inclined downwards. The baffles 41 are used to block most of the escaping powder from being discharged from the exhaust mechanism 40.

[0036] To further ensure a dust-free external environment, inverted U-shaped covers 50 are spaced apart at the top of the exhaust mechanism 40. A powder suction trough 60 is fixed to the bottom of each inverted cover 50, with the bottom end of the cover extending into the trough. Liquid is poured into the powder suction trough 60. Air containing a very small amount of powder is washed by the liquid after being discharged from the exhaust mechanism 40, preventing powder from entering the external environment and ensuring a dust-free environment.

[0037] The beneficial effects of this utility model are as follows:

[0038] This invention overcomes the problem of existing mixing tanks failing to mix accumulated powder at the bottom by installing an air blowing pipe 30 at the bottom and an exhaust mechanism 40 at the top. The air blowing pipe 30 disperses the accumulated powder at the bottom of the mixing tank 10, causing the accumulated powder at the top to rise and be mixed by the stirring blades 23. The exhaust mechanism 40 balances the air pressure inside and outside the mixing tank 10; its placement at the top reduces blockages caused by dust accumulation at the bottom and minimizes excessive dust escape. Furthermore, by further designing the structure of the exhaust mechanism 40, a dust-free escape effect is achieved, meeting the requirements of a cleanroom.

[0039] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A premixing unit for a dust-free modifier production line, comprising: A mixing tank (10) is provided with an inlet (11) and an outlet (12). The driving stirring mechanism (20) includes a motor (21) and a stirring shaft (22) and stirring blades (23) inserted into the mixing tank (10). Its characteristic is that it further includes: An air blowing pipe (30) is located below the mixing tank (10) and extends into the bottom surface of the mixing tank (10); The exhaust mechanism (40) is located on the top surface of the mixing tank (10).

2. The premixing device for the dust-free modifier production line according to claim 1, characterized in that, The top of the air blowing pipe (30) is closed, and the air blowing pipe (30) is provided with several side air blowing holes (31) on the peripheral side wall inside the mixing barrel (10).

3. The premixing device for the dust-free modifier production line according to claim 2, characterized in that, The side air vent (31) is set at an angle downwards.

4. The premixing device for the dust-free modifier production line according to claim 1, characterized in that, The air blowing pipe (30) is close to the inner peripheral wall of the mixing tank (10).

5. The premixing device for the dust-free modifier production line according to claim 2, characterized in that, The exhaust mechanism (40) is tubular.

6. The premixing device for the dust-free modifier production line according to claim 5, characterized in that, The inner wall of the exhaust mechanism (40) is provided with several staggered baffles (41).

7. The premixing device for the dust-free modifier production line according to claim 6, characterized in that, The baffle (41) is set at an angle downwards.

8. The premixing device for the dust-free modifier production line according to claim 5, characterized in that, The top of the exhaust mechanism (40) is provided with an inverted U-shaped cover (50), and the bottom of the inverted cover (50) is fixed with a powder suction groove (60), the bottom end of the inverted cover (50) extending into the powder suction groove (60).

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